garden greenhouse - Specification is 212*212*205cm - Superb green powder coated aluminum frame with gutter system. - 4, 6 and 10mm twin-wall polycarbonate panels that slide into the aluminum framing for strong structural support and durability, the technology is unique. - Safe polycarbonate has the good characteristic of UV-protection, light weight, no sharp edges, easy to handle, preserving heat, advanced insulation, impact resistance and flexural strenght. - Single sliding door and four windows for excellent ventilation. - Easy to install and DIY per the detailed assembly Instructions. - Galvanized steel base can ensure maximum stability of the greenhouse and resist against the hit of hail and storm.